Answer:
A.
binary fission
Explanation:Binary fission ("division in half") is a kind of asexual reproduction. It is the most common form of reproduction in prokaryotes such as bacteria. It occurs in some single-celled Eukaryotes like the Amoeba and the Paramoecium. In binary fission DNA replication and segregation occur simultaneously.
i googled the definition and this one seem the most accurate to me hope this helps